package com.lin.gulimall.product.service.impl;


import com.alibaba.fastjson.TypeReference;
import com.lin.common.constant.ProductConstant;
import com.lin.common.to.SkuReductionTo;
import com.lin.common.to.SpuBoundTo;
import com.lin.common.to.es.SkuEsModel;
import com.lin.common.utils.R;
import com.lin.gulimall.product.entity.*;
import com.lin.gulimall.product.feign.CouponFeignService;
import com.lin.gulimall.product.feign.ElaticSearchFeignService;
import com.lin.gulimall.product.feign.WareFeignService;
import com.lin.gulimall.product.service.*;
import com.lin.gulimall.product.vo.*;
import com.mysql.cj.util.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.lin.common.utils.PageUtils;
import com.lin.common.utils.Query;

import com.lin.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SpuInfoDescService spuInfoService;

    @Autowired
    SpuImagesService spuImageService;

    @Autowired
    AttrService attrService;

    @Autowired
    ProductAttrValueService attrValueService;

    @Autowired
    SkuInfoService skuInfoService;

    @Autowired
    SkuImagesService skuImagesservice;

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    CouponFeignService couponFeignService;

    @Autowired
    BrandService brandService;

    @Autowired
    CategoryService categoryService;

    @Autowired
    WareFeignService wareFeignService;

    @Autowired
    ElaticSearchFeignService searchFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {


        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {

        //1、保存Spu基本信息 `pms_spu_info`
        SpuInfoEntity infoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo,infoEntity);
        infoEntity.setCreateTime(new Date());
        infoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(infoEntity);

        //2、保存Spu的描述图片 `pms_spu_info_desc`
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity spuInfoDescEntity = new SpuInfoDescEntity();
        spuInfoDescEntity.setSpuId(infoEntity.getId());
        spuInfoDescEntity.setDecript(String.join(",",decript));
        spuInfoService.saveSpuInfoDesc(spuInfoDescEntity);

        //3、保存Spu的图片集 `pms_spu_images`
        List<String> images = vo.getImages();
        spuImageService.saveImages(infoEntity.getId(), images);

        //4、保存Spu的规格参数  `pms_product_attr_value`
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());
            AttrEntity id = attrService.getById(attr.getAttrId());
            valueEntity.setAttrName(id.getAttrName());
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(infoEntity.getId());
            return valueEntity;
        }).collect(Collectors.toList());

        attrValueService.saveProductAttr(collect);

        //5、保存Spu积分信息  `sms_spu_bounds`
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        spuBoundTo.setBugBounds(bounds.getBuyBounds());
        spuBoundTo.setGrouBounds(bounds.getGrowBounds());
//        BeanUtils.copyProperties(bounds,spuBoundTo);
        spuBoundTo.setSpuId(infoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if (r.getCode()!=0){
            log.error("远程保存spu积分信息失败");
        }

        //6、保存当前Spu对应的所有sku信息。
        //6.1)、sku的基本信息 `pms_spu_info`
        List<Skus> skus = vo.getSkus();
        if (skus!=null && skus.size()>0){
            skus.forEach(item->{
                //这个是后面的
                String defaultImg ="";
                for (Images image:item.getImages()) {
                    if (image.getDefaultImg()==1){
                        defaultImg = image.getImgUrl();
                    }
                }

                //原来的
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,skuInfoEntity);
                skuInfoEntity.setBrandId(infoEntity.getBrandId());
                skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(infoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                skuInfoService.saveSku(skuInfoEntity);

                Long skuId = skuInfoEntity.getSkuId();

                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();

                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());

                    return skuImagesEntity;
                }).filter(entity->{
                    //返回ture表示需要，false就是剔除
                    return !StringUtils.isNullOrEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());

                //6.2)、sku的图片信息 `pms_spu_images`
                skuImagesservice.saveBatch(imagesEntities);
                //TODO 没有图片路径的无需保存

                //6.3）、sku的销售属性信息 `pms_sku_sale_attr_value`
                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, attrValueEntity);
                    attrValueEntity.setSkuId(skuId);

                    return attrValueEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);

                //6.4）、sku的优惠、满减等信息 `sms_sku_ladder`   `sms_sku_full_reduction`   `sms_member_price`
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item,skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if (skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1) {
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (r1.getCode() != 0) {
                        log.error("远程保存sku优惠信息失败");
                    }
                }

            });
        }
    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity infoEntity) {
        this.baseMapper.insert(infoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {

        QueryWrapper<SpuInfoEntity> queryWrapper = new QueryWrapper<>();

        String key = (String) params.get("key");

        if (!StringUtils.isNullOrEmpty(key)) {
            queryWrapper.and(a->{
                a.like("spu_name",key).or().eq("id",key);
            });
        }

        String catelogId = (String) params.get("catelogId");

        if (!StringUtils.isNullOrEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)) {
            queryWrapper.eq("catalog_id",catelogId);
        }

        String brandId = (String) params.get("brandId");

        if (!StringUtils.isNullOrEmpty(brandId) && !"0".equalsIgnoreCase(brandId)) {
            queryWrapper.eq("brand_id",brandId);
        }

        String status = (String) params.get("status");

        if (!StringUtils.isNullOrEmpty(status)) {
            queryWrapper.eq("publish_status",status);
        }

        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                queryWrapper
        );

        return new PageUtils(page);
    }

    @Override
    public void spuUp(Long spuId) {

        //组装需要的数据
        //1、查出当前spuid对应的所有sku信息，品牌的名字
        List<SkuInfoEntity> skus= skuInfoService.getSkuBySpuId(spuId);

        List<Long> skuIdList = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());
        //TODO 4、查询当前sku的所有可以被用来检索的 规格属性
        List<ProductAttrValueEntity> baseAttrs = attrValueService.baseAttrlistforspu(spuId);
        List<Long> attrIds = baseAttrs.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        List<Long> searchAttrIds = attrService.selectSearchAttrIds(attrIds);

        Set<Long> idSet = new HashSet<>(searchAttrIds);

//        List<SkuEsModel.Attrs> attrs = new ArrayList<>();

        List<SkuEsModel.Attrs> attrsList = baseAttrs.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attrs attrs1 = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attrs1);
            return attrs1;
        }).collect(Collectors.toList());

        //TODO 1、发送远程调用 库存系统查询是否有库存。
        Map<Long, Boolean> stockMap =null;

        try {
//            R skuHasStock = wareFeignService.getSkuHasStock(skuIdList);

            R r = wareFeignService.getSkuHasStock(skuIdList);

            TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>() {
            };

            stockMap = r.getData("data",typeReference).stream().collect(Collectors.toMap(SkuHasStockVo::getSkuId, SkuHasStockVo::getHasStock));
        } catch (Exception e) {
            log.error("库存服务查询异常",e);
            e.printStackTrace();
        }

        //2、封装每个sku的信息

        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProduct = skus.stream().map(sku -> {
            SkuEsModel esModel = new SkuEsModel();
            BeanUtils.copyProperties(sku,esModel);

            esModel.setCatelogId(sku.getCatalogId());
            esModel.setSkuPrice(sku.getPrice());
            esModel.setSkuImg(sku.getSkuDefaultImg());

            if (finalStockMap ==null){
                esModel.setHasStock(true);
            }else {
                esModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }

            //TODO 2、热度评分。
            esModel.setHotScore(0L);

            //TODO 3、查询品牌和分类的名字信息
            BrandEntity brand = brandService.getById(esModel.getBrandId());
            esModel.setBrandName(brand.getName());
            esModel.setBrandImg(brand.getLogo());

            CategoryEntity category = categoryService.getById(esModel.getCatelogId());
            esModel.setCatalogName(category.getName());

            //设置检索属性。
            esModel.setAttrs(attrsList);



            return esModel;
        }).collect(Collectors.toList());

        // TODO 5、将数据发送给es进行保存。
        R r = searchFeignService.productStatusUp(upProduct);
        if (r.getCode()==0){
            //TODO 6、改 spu_info状态
            this.baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
        }else{
            //TODO 7、重复调用问题。? 接口幂等性:重试机制？

            //feign调用流程
            /*
             * 1、构造请求数据，将对象转成json
             * RequestTemplate template = buildTemplateFromArgs.create(argv);
             * 2、发送请求进行执行(执行成功进行解码)
             *  executeAndDecode(template);
             * 3、执行请求会有重试机制
             *  while (true) {
             *       try {
             *         return executeAndDecode(template);
             *       } catch (RetryableException e) {
             *         try {
             *           retryer.continueOrPropagate(e);
             *         } catch (RetryableException th) {
             *              throw cause;
             *         }
             *         continute
            * */




        }
    }
}